Entrance-door lock.



7 A'. ARBNS.

ENTRANCE DOOR LOCK. APPLIOATION FILED Nov. 27, 1909.

971,340. Patented sept` 27, 1910.

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A. ARENS.

ENTRANCE DOOR LOCK.

APPLIOATION FILED Nov 3MP/mofa Patented Sept. 27, v1910.

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illlllll tlhlllh@ @TTES ATENT @Fhll AUGUST .AR-ENS, OF NEW BRITAIN,CONNECTICUT, ASSIGNOR TO P. 85 F. CORBIN, 0F NEW BRITAN, CONNECTCUT, ACORPORATION OF CONNECTICUT.

ENTRANCE-159GB LOCK.

Specification of Letters Patent.

Patented Sept. 2*?, 1919.

Application filed November' 27, 1909. Serial No. 530,190.

To all 'whom it may concern:

Be it known that l, AUGUST hunne, a citizen of the United States,residingI at New Britain, county of Hartford, State of Connecticut, haveinvented cert-ain new and useful Improvements in Entrance-Boor Locks, ofwhich the following is a full, clear, and exact description.

My invention relates to locks, and particularly to improved features ofconstruction in that type of lock illustrated in the Phelps Patent No.722,619, ot' March 10, 1903.

Tie object oit the present invention is to provide, in the type of lockreferred to, certain improved. features of construction whereby theoutside knob may be dogged in a unique manner against rotation (for thepurpose of operating the latch mechanism) and whereby, even though saidouter knob be dogged, entrance :trom the outside may still be elfectedby means et a proper key.

The invention also comprehends in its construction apparatus foractuating a dead bolt from either the inside or outside ot a door at anytime, said deadbolt being` actuated by the saine instrumentality as isemployed for operating the latch mechanism from the outside ot the doorwhen the outer knob is dogged, viz., a key.

rllh-e invention has great utility in connection with entrance doors,particularly entrance doors for public institutions and stores whereinthe locks are subjected to much use.

ln the lock of the patent to .vhich l have above referred the (loggingmechanism for the outer knob is controlled wholly by an exposedoperating ring located so closely to the shell of the inside handle thatit sometimes happens that a person passing from the inside to theoutside of a door accidentally and unintentionally turns the dogoperating ring` simultaneously with turning the inner knob, which acteither dogs or releases the outer knob as the case may be. Obviously, ifit has been the intention ot the owner of the lock to dog the outer knobso that entrance can not be had t'rom the outside without properannouncement or without. the use of a proper key, such intention wouldbe defeated by the accidental manipuyPatent No. 834,994.

lation and releasing of the dog operating ring above referred to.

My present invention eliminates all danger or' accidental orunintentional operation of the dog actuator and dog. Not alone does thepresent invention accomplish this but it also prevents all mischievoustampering with the lock in such a way as to dog or release the outerknob as the case may be.

llfhese and other advantages will be apparent to the mechanic skilled inthe art by a reading of the following description and an examination ofthe accompanying drawings, in which- Figure 1 is a plan view; Fig. 2 isin the main a section on the line a-rc of Fig. 1, certain parts beingshown in elevation; Fig. 3 is an elevation of certain parts taken on theplane on the line jz/-Ii/ ot Fig. 2; Fig. 4f is a section on the planeof the line :1f-z of Fig. 2, certain parts being shown in elevation, andcertain parts being omitted; Fig. 5 is a plan view ot' a detail (thecentral spindie) detached; Figs. 6, 7, 8, 9 and 10 are end views ofother details; Fig. 11 is a fragmentary side view ot another detail,partly in section; Fig. 12 is a similar view of still another detail;Fig. 13 is a view of the outer side of the inner section of one ot theknobs; Fig. 14 is a side elevation of another detail; Fig. 15 is an endview or' another detail; Fig. 16 is an end view ot the detail shown inFig. 14s; Fig. 17 is a side elevation of the forward end of the lockshown in Fig. 1.

For a detailed description of most ot the features ot constructionemployed. in the present lock, reference may be made to the Phelpspatent above referred to, also Phelps As to such features as aredescribed in said patents, l shall refer to the same herein in generalterms only, devoting the detail description to such features ofimprovement as have been invented by me.

rlhe lock in its preferred form includes the main supporting traine 1,having the face plate 2 at its trout end and having` the knob supportingbearings 8 4 near its rear end.

5 is a. latch bolt.

6 is a dead bolt.

7 is an actuator for a latch dog, whereby when the door is closed thelatch 5 can not be pushed back by the insertion of a thin blade or otherappropriate instrument into the space, between the edge of a door(bearing said lock) and the door casing,-a method of unlawful entrycommonly practiced.

In the' present instance 8 represents the inner knob and 9 the outerknob of the lock. These knobs are provided with inwardly projecting'shanks 8at and 9a respectively.

10-11 are independent roll backs both arranged to engage the yoke 12 ofthe latch bolt, whereby said latch bolt may be retracted by turningeither knob, said roll backs being suitably connected with the shanks ofsaid knobs 3-9 respectively, one suitable method of connecting saidparts being disclosed in the patent rst above referred to. The roll back11 is so mounted that when in one position it may turn freely with theshank of the knob 9 but when said roll back is in another position itengages in notches in the fixed frame of the lock, and hence can not beturned. Under such conditions it is plain that the shank 9a can not beturned and hence at such a time the outer knob 9 will be dogged Thisconstruction and operation is more fully disclosed in the earlierpatents referred to.

50 is a single armed roll-back mounted upon an internal spindle 13 whichis controlled by a suitable key which may be inserted in the outer endof either knob, both knobs having the usual pin-tumbler lock thereinlater referred to. The roll-back 50 is adapted to perform the singlefunction of operating the dead bolt 6, the intermediate connectingmechanism between said dead bolt and said roll-back 50 being similar tothat shown, described and claimed in Phelps Patent No. 722,619.

14k-15 are locks arranged to be carried by and within the knobs 9 8respectively, said locks in this particular instance beingI of thepin-tumbler type. The plug end of each of these locks is of specialformation, each being dierent, hence I will describe the sameseparately.

The inner end 14a of the plug of lock 14; (for the outer knob) has acentral bore which rotates on the end of the spindle 13, the corners ofthe latter being rounded off somewhat to avoid undue wear. rEhe spindle13 receives its support at one end in this plug. To provide a properbearing, and to perform another function hereinafter more fullydescribed, the plug of the lock 14 extends inwardly, as at lett, Fig.et. One side of this plug end 14eZL is cut away, as indicated at 11th,(Fig. 15) to afford a receiving space for a pin 16 projecting laterallyfrom an adjacent part of the spindle 13.

The plug of the lock 15 has a tubular eX- tension 15:l but in thisinstance said tubular extension is in the form of a sleeve rotatablymounted upon the solid end of the plug, said solid part being shown at17 (F ig. la).

17EL is a pin projecting laterally from the solid inner end 17 of theplug of lock 15, said pin end standing in a slot arranged transverselyin the wall of the sleeve extension 152L so that said sleeve extensionmay have a limited amount of rotary movement relatively to the solidpart 17 of the plug, and vice versa. The outer end of the sleeveextension 15a of the plug has a specially formed spiral cam, whichbegins approximately at the point indicated at 13, and terminates at thepoint indicated at 19. As a matter of fact the low part of said spiralgroove terminates or communicates with a back-set notch, as clearlyshown in the drawings, the function of which will later be seen. Alaterally projecting pin 20 t) on spindle 13 bears against the wall ofthe spiral cam at the inner end of the sleeve extension 15a, theadjacent end of the spindle 13 being supported in the round bore of saidsleeve extension in a manner similar to the support for the opposite endof the spindle 13. 21 is a single armed roll-back, which lies adjacentto the roll-back 50 when the parts are assembled, the single arm of saidroll-back 21 performing the function of coupling the key-actuatedspindle 13 with the latch slide for the purpose of retracting the latchbolt by means of a key. This particular roll-back construction isdescribed in more detail in the former Phelps Patent No. 722,619.

The spindle 13 has an intermediate round portion 13a and has a stopshoulder 13b at one side of said round portion. The shiftable roll-back11 always stands adjacent to the rounded portion 13a, being preventedfrom moving to one side thereof by the stop shoulder 13b and to theother side by a friction held sleeve 22, which may be slipped over thespindle 13 from one end. One or both of the pins 16--20 may be maderemovable. The roll-backs 50 21 each have an opening so shaped thatwhile the same may slide upon the spindle 13 neither of them can rotateindependently thereof. The inner end of the tubular knob bearing 3 isnotched at 23 to receive the shift-able rollback 11 when it is desiredto dog the outer knob 9 against rotation.

241 is an expansion spring located between the inner end of the plugextension 141 and the friction sleeve 22, suitable washers beingprovided as shown, if desired, to aHord a proper support for the ends ofsaid spring. The function of this spring 2;-1 is to gently press thespindle 13 to the right as viewed in F ig. 2 so as to hold the pin 2Oagainst the spiral cam at the inner end of the sleeve extension 15a.

lll@ is an otlset on the outside of the plug' 1td while 14d is a stoppin on the inner wall ot the knob 9 in the path of movement ot theoffset shoulder 14C, the purpose of said otlset and pin being to limitthe rotation of the plug end 1sta so that it will not override any otthe parts. lt will be understood that the knob 8 is always tree to turnto withdraw the latch.

Uperation: lt will be understood that, like the previous locks referredto,the present construction may be employed in a similar manner in manyrespects. For example, the latch bolt 5 may be retracted by the turningot either of the knobs 8 or 9 or by the turning of the spindle 13 bymeans ot a suitable key in the proper direction to cause the roll-back21 to engage the latch slide. ln the present case, however, thekey-controlled spindle may be rotated by a suitable key in such almanner as to advance or retract the dead bolt, a feature not possiblewith the spindle shown in the lock ot the patent previously referred to.ln the present instance, too, it is possible through the medium ot thesame spindle to dog` and release the outer knob from the inside of thedoor to which the lock is applied. The construction is also such that nomatter what function is to be pervtermed by the key-controlled spindle,it is possible at any time to impart the desired motion to the lock bythe key and then withdraw the same. ln performing` these functions theoperation is as lollows: Assuming` the parts are as shown in thedrawings with the dead bolt withdrawn and both knobs tree to turn. lt itis desired simply to dog the outer knob, the operator has but to turncounter clockwise the sleeve extension 15EL by the insertion of asuitable key in the lock 15. By turning' this sleeve in a counterclockwise direction the spiral cam thereon causes the pin 2O and spindle13 to move to the lett, as viewed in Fig. 2. One complete revolut-ion ofthe sleeve 15a accomplishes this shitting;r ot the spindle to asuthcient extent to move the roll-back 11 into the notches Q3 at theinner end of the stationary knob bearing' 3. yl`he key may then bewithdrawn. This act ot' shitting' the spindle and rollback 11 dogs theouter knob 9 so that the saine can not be turned and the latch can notbe retracted thereby. The insertion ot the key in the inner knob and aclockwise complete revolution will restore the parts to the original.position, the spring` 24 aiding` in this operation. lt at any timeduring;l the period when th-e outer knob is dogged it is desired toenter trom the outside, the holder of the suitable key inserts it in thelock in knob 9 and turns the same in a counter clockwise directioncausing one side ot the clearance recess 14th to engage pin 16 on thespindle 13 so that a continued rotation ot the key (and plug ot lock 1sin the same direction will rotate spindle 13 so as to retract the latchthrough the medium ot the roll-back 21.` lt it is lesired to not onlydog the outer knob, but also to advance the dead bolt G, this may beaccomplished from the inside by inserting` a key and turning it as tirstdescribed one complete revolution counter clockwise to tirst dog theouter knob; then, by continuing' this revolution the wall at the end ot'the aforesaid set-back notch will engage the pin 2O and turn the spindlein a direct-,ion to advance the dead bolt t3 through the medium otrollback 50. A partial clockwise rotation ot the key will bring it backinto proper position tor removal, leaving' the outer knob dogged and thedead bolt advanced. lt' one desires to enter trom the outsid-e undersuch conditions he has but to insert a suitable key in the lock in theouter knob 9 and turn it in a counter clockwise direction as betere,causing one side ot' the clearance notch lll-h' to en: gage pin 16,whereupon continued rotation imparts to the spindle correspondingrotation so that the dead bolt il will iirst be withdrawn by action ofthe roll-back 50. ,lontinucd rotation in the saine direction causes theretraction ot the latch slide (the out-er knob itself beingstill dogged)through the medium ot the roll-back Q1.

Assuming the parts are in the position shown in the drawings, and theuser oit the lock simply wishes to go outside and lock the door from theoutside by means et dead bolt 6, he has but to insert the key in thelock in the outer knob and turn it in a. clockwise direction, bringing'one side wall ot the notch 1lb into engagement with the pin 1G, turning'the spindle 1S 'thereby in the same direction until the dead bolt t3 isprojected through the medium oit' the rollback 50. ly then reversing thedirection ot rotation ot the key and bringing; it to its originalposition, said key maybe withdrawn.

To withdraw the dead bolt trom the outside (the outer knob not beingldogged in this case) the key may be again inserted and turned in acounter clockwise direction until the opposite side et the notchvlelengages the pin 1G whereupon continued .rotation withdraws the deadbolt tln'ough the medium ot the same roll-back ltroin the foregoing itwill be seen that all ot the functions necessary in any single entrancedoor lock are capable ot porterinance here and the moditied and atleedtean turcs ot' construction, which have been applied by me to theaforesaid well known Phelps locks, in no way impair or intortere withthe action of the parts as provided in said Phelps locks. ln the presentconstruction there is no possibility ot' unintentional, accidental ormischievous dog- AQing or undogging of the outer knob or locking orunlocking' of the door, since it can only be accomplished by one who hassutlicient authority to hold a proper key.

lllhat l claim is:

1. ln a lock, a latch bolt, a dead bolt, two knobs arranged to stand onopposite sites ot said lock and independently operable, roll-back toreach knob operatively connected with said latch, another' roll-backoperable independently of the knobs and also operatively connected withsaid latch, still another roll-back operatively connected with said deadbolt, all ot sait roll-backs being arranged side by side, a spindlepassing through all ot said roll-backs anl keycontrolled means carriedby each knob and operable independently thereoi3 for operating saidspindle.

i2. ln lock, a latch bolt, a dead bolt, two knobs arranged to stand onopposite sides ot said lock and independently operable, roll-back toreach knob operatively connected with said latch, another roll-backoperable independently ot the knobs and also op ratively connected withsaid latch, still another roll-back operatively connected with said deadbolt, all of said roll-backs being arranged side by side, andkey-controlled ineans carried by each knob and operable independentlythereoiB tor operating said spindle, said spindle having a longitudinalmovement, one ot the iii-st mentioned roll-backs being movable laterallyby the longitudinal increment ot the spindle, said roll-back being treewhen the spindle stands in one position and held against rotation whentoev spindle stands in another position, said spindle-operating means atone end being' constructed to impart either rotary or longitudinalmovement to said spindle.

3. ln a lock a latch bolt, a dead bolt, two oppositely arrangedindependent knobs, both ot said knobs being` independently connectedwith said latch bolt, a roll-back for the latch bolt independent ot theknobs, a roll-back for the dead bolt independent of the knobs, saidroll-backs being arranged side by side, a spindle tor operating saidroll-backs by a rotary movement, means carried by the spindle to lockone ot the knobs against rotation by a longitudinal movement ot thespindle. key-operable means carricd by one knob tor imparting both arotary and a longitudinal movement to said spindle, and key-operatedmeans carried by the other knob for imparting rotary movement only tosaid spindle.

Ll. ln lock, a latch bolt, a dead bolt, opposite independent knobs, aroll-back connection between each knob and said latch bolt, anotherroll-back operable independently ot the knobs and operatively connectedwith the latch bolt, and still another roll-back operable independentlyof the knobs and operatively connected with the dead-bolt, means forlocking one of said knobs against rotation, and key-operable Deansconcentric with the knobs and accessible by a key entered through theend or" either knob tor operating the last two mentioned roll-backs.

5. 1n a lock, a latch bolt, a. dead bolt, opposite independent knobs, aroll-back connection between each knob and said latch bolt, anotherroll-back operable independently oi the knobs and operatively connectedwith the latch bolt, and still another rollback operable independentlyof the knobs and operatively connected with the deadbolt, means forlocking one of said knobs against rotation, and key-operable meansconcentric with the knobs and accessible by a key entered through theend ot either knob tor operating the last two mentioned rollbacks, saidkey-operable means at one side ot the lock being included in the meansfor locking one ot the knobs against rotation.

G. ln a lock, an inner and an outer knob, a latch bolt, a dead bolt,independent rollback connections between both knobs and the latch boltwhereby said latch bolt may be operated by either knob independently,two roll-backs for operating the latch bolt and dead bolt independentlyof the knob mechanism, key mechanism having a connection through theinner knob t'or clogging the outer knob to hold the same against rota--tion, and key mechanism having a connection through the outer knob withthe last mentioned roll-backs to operate the saine independently ot theroll-back for the outer knob.

7. ln a lock, two oppositely arranged indepcndently operable knobs, withmeans tor clogging' one of said knobs, a latch bolt, a dead bolt, saidlatch bolt being operable by either of said knobs independently, arollback independent orn both knobs for operating the latch, anotherroll-back t'or operating said dead bolt, means operable through theinner knob for dogging the outer knob against rotation, and key-operablemeans having a connection through the inner knob tor clogging tae outerknob and tor operating the dead-bolt, and another key-operable meanshaving a connection through the outer knob tor operating the latch boltand dead bolt.

S. vln a lock, an inner and an outer knob, a latch bolt, a dead bolt,independent rollback connections between both knobs and the latch boltwhereby said latch bolt may be operated by either knob independently,

two roll-backs for operating the latch bolt and dead bolt independentlyot the knob mechanism, and key-controlled mechanism having a connectionthrough both knobs for operating the latch bolt and dead bolt it'i'omeither' side of the door and independently of the knob roll-backs.

9. ln a lock, a latch bolt, a dead bolt, two oppositely arrangedindependent knobs, a roll-back for each operatively connected with saidlatch bolt, another roll-back independent of the knobs for operatingsaid latch bolt, another roll-back independent ot the knobs foroperating the dead bolt, a single spindle supporting the last tworollbacks for rotating the same and operatively connected with one otthe first mentioned roll-backs to move the same laterally, andkey-operable means for imparting both rotary and longitudinal movementto the spindle, said key-operable means including connections throughone knob, other keyoperable means including connections through theother knob for imparting rotary movement to the spindle.

10. ln a lock, a latch bolt, a dead bolt, two opgositely arrangedindependent knobs, a roll-back for each operatively connected with saidlatch bolt, another roll-back independent ot the knobs itor operatingsaid latch bolt, another roll-back independent of the knobs fioroperating` the dead bolt, a single spindle supporting the last tworoll-backs tor rotating the same and operatively connected with one ofthe tirst mentioned rollbacks to move the same laterally, andkeyoperable means for imparting both rotary and longitudinal movement tothe spindle, said key-operable means including` connections through oneknob, and other key-operable means including connections through theother knob for imparting rotary moveinent to the spindle independentlyot' the longitudinal position of said spindle.

ll. ln a lock, a latch bolt, a dead bolt, two knobs for operating saidlatch-bolt independently, a dogging device for one ot said knobs, saidclogging device being operable by a key insertible in the opposite knob,key-mechanism in each knob, and. connections between said key-mechanismand said bolts whereby said latch bolt and said dead bolt may beoperate-d by the insertion ot' a key in either knob.

12. ln a lock, a latch bolt, two oppositely arranged independentlyoperable knobs, connecti ons between each of said knobs and said latchbolt, independent key-controlled mechanism carried by 'each knob, aconnection between each of said key-controlled mechanisms and the latchbolt whereby said latch bolt may be operated by either key-controlledmechanism at any time, and a connncction between one of saidkey-controlled mechanisms and the opposite knob for clogging the latter'against rotation.

ln a lock, a. latch bolt, two oppositely arranged independently operableknobs, connections between each of said knobs and said latch bolt,independent key-controlled mechanism carried by cach knob, a connectionbetween each ot said key-controlled mechanisms and the latch-boltwhereby said latch Jolt may be operated by either keycontrolledmechanism at any time, and a connection between one ot saidkey-controlled mechanisms and the opposite knob for clogging the latteragainst rotation, a dead bolt, and means of connection between both ofsaid key-controlled mechanisms and said dead bolt whereby said dead boltmay be operated at any time by either ot said key-controlled mechanisms.

lil. 1n a lock, a latch bolt, a dead bolt, inner and outer independentlyoperable knobs, a roll-back for each knob operatively connected withsaid latch bolt, a roll-back operable independently of the knobs andmeans tor operatively connecting the same with said latch, anotherroll-back and means tor operatively connecting the same with said deadbolt, a spindle supporting the last two roll-backs, and key-actuatedmechanism carried by the inner knob in combination with means associatedtherewith to first dog the outer knob against rotation when the spindleis turned in one direction and to then project the dead bolt upon afurther turn oi said spindle in the same direction.

l5. ln a lock, a latch bolt, a dead bolt, inner and outer independentlyoperable knobs, a roll-back for each knob operatively connected withsaid latch, a roll-back operable independently of the knobs, and meansfor operatively connecting the same with said latch bolt, anotherroll-back and means for operatively connecting the same with said deadbolt, a spindle supporting the last two roll-backs, and key-actuatedmechanism carried by the inner knob in combination with means associatedtherewith to first dog the outer knob against rotation when the spindleis turned in one direction and to then project the dead bolt upon afurther turn ot said spindle in the same direction, said meanscomprising a spiral cam carried by the inner knob but rotatableindependently thereof.

1G. ln a lock, a latch bolt, a dead bolt, inner and outer independentlyoperable knobs, a roll-back tor each knob operatively connected withsaid latch, a roll-back operable independently of the knobs, and meansfor operatively connecting the same with said latch bolt, anotherroll-back and means for operatively connecting the saine with said deadbolt, a spindle supporting the last two roll-backs, key-actuatedmechanism carried by the inner knob in combination with means associatedtherewith to first dog the outer knob against rotation when the spindleis turned in one direction and to then project the dead bolt upon afurther turn of said spindle in the Same direction, said meanscomprising a spiral cam carried by the inner knob but rotatableindependently thereof, and means of connection between said cam and saidspindle to rotate said parts together when said cam is turned in anopposite direction to rst release the outer knob to permit the same tobe turned freely and to then withdraw said dead bolt.

17. ln a lock, two oppositely arranged independently operable knobs, alatch bolt operatively connected with said knobs for independentoperation thereby, a dead bolt, roll-back mechanism for operating saidlatch bolt and dead bolt independently of either knob, key-controlledmechanism carried by each knob, and means of operative connectionbetween said key-controlled mechanism and said latch bolt and dead boltwhereby either bolt may be operated by a key from' either side of thelock as well as by a knob on either side of said lock.

18. ln a lock, two oppositely arranged independently operable knobs, alatch bolt operatively connected with each knob for independentoperation thereby, a dead bolt, roll-back mechanism for operating saidlatch bolt and dead bolt independently of either knob, key-controlledmechanism carried by each knob, means of operative connection betweensaid key-controlled mechanism and said latch bolt and dead bolt wherebyeither bolt may be operated by a key from either side of the lock aswell as by a knob on either side of said lock, and a dogging mechanismfor one of said knobs, said clogging mechanism being operated by thekey-controlled mechanism carried by the opposite knob.

AUGUST ARENS. Witnesses G. ERNEST Boor, VWM. V. COLLINS.

